Foreground actions are executed by the EINE Server in the EINE Server address space. If the EINE Servers use the same batch Natural nucleus as a Natural nucleus specified in the EINE Site Symbolic NATNUC parameter and the batch Natural nucleus is not reentrant, the EINE Server's copy of the batch Natural nucleus is corrupted by the FG action's invocation of the Natural nucleus.

Resolution:

Relink the batch Natural nucleus as reentrant. This can be difficult because to the various components linked into the batch Natural nucleus may not all be reentrant.

The recommended solution is to create a second separate Natural nucleus to use in the EINE Server with the appropriate NTLFILE macro definitions for the EINE files.